For those people wondering about what percentage of PM2.5 and PM10 are caused by non-exhaust emissions. "NEEs are currently believed to constitute the majority

For those people wondering about what percentage of PM2.5 and PM10 are caused by non-exhaust emissions. "NEEs are currently believed to constitute the majority of primary particulate matter from road transport, 60 percent of PM2.5 and 73 percent of PM10 – and in its 2019 report ‘Non-Exhaust Emissions from Road Traffic’ by the UK Government’s Air Quality Expert Group (AQEG), it recommended that NEE are immediately recognised as a source of ambient concentrations of airborne particulate matter, even for vehicles with zero exhaust emissions of particles – such as EVs."